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Finding the Fourth Proportional to 181,358.17, 250,280.35 and 100,789.09

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Solution

The fourth proportional to 181,358.17, 250,280.35 and 100,789.09 is: 139,092.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,358.17 : 250,280.35 = 100,789.09 : x
  2. Step 2: Convert to fraction form
    181,358.17/250,280.35 = 100,789.09/x
  3. Step 3: Cross multiply
    181,358.17x = 250,280.35 × 100,789.09
  4. Step 4: Simplify right side
    181,358.17x = 25,225,527,843.71
  5. Step 5: Solve for x
    x = 25,225,527,843.71/181,358.17
  6. Step 6: Final answer
    x = 139,092.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.